Onyx Construction Consultants Ltd
Groundworks Estimating and Quantity Surveying for Contractors and Developers
Accurate groundworks prices and practical commercial support, from a surveyor with over 40 years in the industry.
40+
years in construction
2004
consulting since
5–200+
plot schemes
East Anglia
& Home Counties
Your estimating department, without the overheads
Onyx Construction Consultants has priced and managed groundworks since 2004. We work for groundwork contractors, civil engineering firms and housing developers across East Anglia and the Home Counties.
You get an experienced estimator and quantity surveyor when you need one. No salary, no recruitment, no idle time between tenders.
What we do
Tender pricing
Full groundworks Bills of Quantities, priced and ready to submit.
Take-offs and quantities
Drainage, roads, sewers, foundations, earthworks and external works.
Site Investigation reviews
Ground conditions and pricing risks spotted before you commit.
Post-contract QS
Valuations, variations and final accounts.
Schemes we price
From 5-plot infill sites to developments of 200+ homes, worth from around £500k to £10M. That includes plot foundations, drainage, S38/S104 roads and sewers, S278 highway works, enabling works, piling, bulk earthworks and external works.
Why clients come back
- Groundworks is all we do. We know where the money is won and lost.
- Clear tender returns. Priced BOQ, summary sheet, and exclusions and clarifications set out plainly.
- Straight talking. If something in the drawings or SI report is a risk, we tell you.
- Flexible fees. Hourly, daily or a fixed fee per project.
Most of our work comes from repeat clients and referrals.
Covering East Anglia and the Home Counties
Based in Ipswich, we work on sites across Suffolk, Essex, Cambridgeshire, Bedfordshire, Hertfordshire, Buckinghamshire and Kent.
Got a tender coming up?
Send us the drawings and we’ll tell you what’s involved and what it will cost.